![]() ![]() ![]() Meade #497 Autostar Computer Controller: Included with Meade ETX 90 AT Telescope the patented Meade Autostar Controller #497 brings automatic GO TO operation, plus dozens of additional menu options, to your fingertips, with a database of more than 30,000 celestial objects, including 5,386 galaxies, nebulae and star clusters from the Index Catalog (IC) 7,840 objects from the New General Catalog (NGC) 110 Messier objects the major planets from Mercury to Pluto and more. Observe the continually changing cloud-belt patterns on the surface of the planet Jupiter shadows cast on to Jupiter as one of its four principal satellites transits the planet's disc the magnificent ring system and satellites of Saturn as well as dusky markings and the ring-shadow on the surface of Saturn Moon craters by the hundred, plus lunar rilles, mountain ranges, and fault lines, all visible in brilliant, high-resolution, high-contrast detail the variable phases of the planets Mercury and Venus prominent features on the surface of Mars. Or, for the advanced astronomer who already owns a larger instrument, the Meade ETX-90AT Telescope is the perfect diffraction-limited, ultra portable field telescope. Meade ETX Telescopes are instruments fully capable of growing with your interest and are ideal for both the casual observer and serious astronomer alike.įor the casual or beginning observer the Meade ETX-90AT UHTC Autostar Telescope may be all the telescope ever required. You will observe the feather structure of an eagle from 50 yards or study the rings of Saturn from a distance of 800 million miles, focus beyond the Solar System and observe majestic nebulae, ancient star clusters, remote galaxies, and even stars recently discovered to have planets orbiting about them. Meade ETX-90AT UHTC Telescope with Autostar reveals nature in an ever-expanding level of detail. With Meade Autostar Computer Controller, automatic tracking of celestial objects, and diffraction-limited imaging, a Meade ETX-90 AT Telescope may be all the telescope ever required by many terrestrial and astronomical observers. Meade ETX Telescopes are extremely versatile, high-resolution telescopes with features similar to those once available only with larger and more specialized imaging systems. ![]() All GoTo systems come with an extensive internal database of celestial objects.Meade ETX 90 AT UHTC GoTo Computer Telescope could be your Personal Window to the Universe. With a GoTo drive, you simply center the telescope on two different stars so that the system knows your location. GoTo drives also are available with a GPS (Global Positioning Satellite) system to make it a truly a hands-free setup. A GOTO drive consists of a dual-axis drive and a set of Digital Setting Circles (DSC). GoTo drives are extremely popular today are found on many Meade and Celestron telescopes. A dual-axis drive system comes in useful at higher telescope magnifications and is considered essential for deep-sky astrophotography, which requires long exposure times. It provides basic star tracking as well as precise control of the telescope's position in any direction. Dual-Axis Telescope Motor DrivesĪ dual-axis telescope drive consists of two motors and driver that attaches to both axes of a telescope mount (both declination and right ascension). For casual astronomy observing, a single-axis telescope drive is usually sufficient. It provides basic star tracking and usually higher speed settings for moving (slewing) the telescope. Single-Axis Telescope Motor DrivesĪ single-axis drive consists of a single motor and driver that attaches to the right-ascension (east-west) axis of a telescope mount. For all drives, see Celestron, Meade, and Orion telescopes drives and controllers. There are two basic types of motor drive systems for telescopes: single-axis and dual-axis. Once properly installed, pointing your telescope is as easy as punching in the object you want to view on the keypad. Computer drive systems also come equipped with a handheld keypad controller with built-in astronomical database. Motorized drives are standard on many telescopes today or can be purchased separately and installed on any type of telescope mount today - equatorial, altazimuth and even Dobsionian mounts. Modern electronic, motorized drive systems for telescopes make it incredibly easy to find and track objects in the night sky.
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